Intel Core i9-12900HX vs Intel Core i9-12900K

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i9-12900HX or Intel Core i9-12900HX – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The Intel Core i9-12900HX features 16 processor cores and has the capability to manage 24 threads concurrently.
It was released in Q2/2022 and belongs to the 12 generation of the Intel Core i9 series.
To use the Intel Core i9-12900HX, you'll need a motherboard with a BGA 1744 socket.
The Intel Core i9-12900K features 16 processor cores and has the capability to manage 24 threads concurrently.
It was released in Q4/2021 and belongs to the 12 generation of the Intel Core i9 series.
To use the Intel Core i9-12900K, you'll need a motherboard with a LGA 1700 socket.
Mobile Segment Desktop / Server
Intel Core i9-12900HX Name Intel Core i9-12900K
Intel Core i9 Family Intel Core i9
12 Generation 12
Intel Core i 12000H Group Intel Core i 12000
 
 

CPU Cores and Base Frequency

The Intel Core i9-12900HX has 16 CPU cores and can calculate 24 threads in parallel.
The clock frequency of the A-Core is 2.3 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
Processors with hybrid (big.LITTLE) architecture strike a balance between performance and power efficiency, making them ideal for mobile devices.
The Intel Core i9-12900K has 16 CPU cores and can calculate 24 threads in parallel.
The clock frequency of the A-Core is 3.2 GHz.
5.0 GHz A-Core Frequency Turbo 5.2 GHz
1.7 GHz B-Core Frequency 2.4 GHz
2.3 GHz A-Core Frequency 3.2 GHz
8x Gracemont Cores B 8x Gracemont
8x Golden Cove Cores A 8x Golden Cove
Yes Overclocking Yes
hybrid (big.LITTLE) Core architecture hybrid (big.LITTLE)
3.6 GHz B-Core Frequency Turbo 3.9 GHz
24 Threads 24
Yes Hyperthreading Yes
16 CPU Cores 16
 
 

Internal Graphics

The Intel Core i9-12900HX has integrated graphics, called iGPU for short.
Specifically, the Intel Core i9-12900HX uses the Intel UHD Graphics 770, which has 256 texture shaders
and 32 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The Intel Core i9-12900K has integrated graphics, called iGPU for short.
Specifically, the Intel Core i9-12900K uses the Intel UHD Graphics 770, which has 256 texture shaders
0.3 GHz GPU frequency 0.3 GHz
Q4/2021 Release date Q4/2021
12 Direct X 12
Intel UHD Graphics 770 GPU name Intel UHD Graphics 770
10 nm Technology 10 nm
-- Max. displays --
256 Shaders 256
64.0 GB Max. GPU Memory 64.0 GB
32 Execution units 32
11 Generation 11
1.55 GHz GPU (Turbo) 1.55 GHz
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
Decode / Encode AVC Decode / Encode
Decode VC-1 Decode
Decode / Encode VP9 Decode / Encode
Decode / Encode h265 / HEVC (10 bit) Decode / Encode
Decode / Encode h264 Decode / Encode
Decode / Encode VP8 Decode / Encode
Decode / Encode h265 / HEVC (8 bit) Decode / Encode
Decode / Encode JPEG Decode / Encode
Decode AV1 Decode
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 128.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 76.8 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
2 Memory channels 2
128.0 GB Max. Memory 128.0 GB
pci PCIe pci
Yes AES-NI Yes
No ECC Yes
76.8 GB/s Bandwidth 76.8 GB/s
DDR4-3200, LPDDR4X-4266, DDR5-4800, LPDDR5-5200 Memory type DDR4-3200, DDR5-4800
 
 

Thermal Management

The processor has a thermal design power (TDP) of 55 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
The processor has a thermal design power (TDP) of 125 W watts.
86 W TDP up None
100 °C Tjunction max 100 °C
157 W TDP (PL2) 241 W
55 W TDP (PL1 / PBP) 125 W
45 W TDP down None
 
 

Technical details

The Intel Core i9-12900HX is manufactured using a 10 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 30.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i9-12900K is manufactured using a 10 nm process.
Q2/2022 Release date Q4/2021
-- Part Number BX8071512900K
14.0 MB L2-Cache 14.0 MB
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
SSE4.1, SSE4.2, AVX2, AVX2+ ISA extensions SSE4.1, SSE4.2, AVX2, AVX2+
Monolithic Chip design Monolithic
Alder Lake H Architecture Alder Lake S
10 nm Technology 10 nm
BGA 1744 Socket LGA 1700
Windows 10, Linux, Windows 11 Operating systems Windows 10, Linux, Windows 11
606 $ Release price 589 $
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
30.0 MB L3-Cache 30.0 MB
 
 

Benchmarks

Estimated results for PassMark CPU Mark

Intel Core i9-12900K
16C 24T @ 3.2 GHz
40902
40902
Intel Core i9-12900HX
16C 24T @ 2.3 GHz
35642
35642

Cinebench R23 (Multi-Core)

Intel Core i9-12900K
16C 24T @ 3.2 GHz
27472
27472
Intel Core i9-12900HX
16C 24T @ 2.3 GHz
18845
18845

Geekbench 5, 64bit (Multi-Core)

Intel Core i9-12900K
16C 24T @ 3.2 GHz
17595
17595
Intel Core i9-12900HX
16C 24T @ 2.3 GHz
15474
15474

Geekbench 6 (Multi-Core)

Intel Core i9-12900K
16C 24T @ 3.2 GHz
16244
16244
Intel Core i9-12900HX
16C 24T @ 2.3 GHz
14620
14620

Cinebench R20 (Multi-Core)

Intel Core i9-12900K
16C 24T @ 3.2 GHz
10511
10511
Intel Core i9-12900HX
16C 24T @ 2.3 GHz
7197
7197

Cinebench R15 (Multi-Core)

Intel Core i9-12900K
16C 24T @ 3.2 GHz
4111
4111
Intel Core i9-12900HX
16C 24T @ 2.3 GHz
2894
2894

Geekbench 6 (Single-Core)

Intel Core i9-12900K
16C 24T @ 3.2 GHz
2560
2560
Intel Core i9-12900HX
16C 24T @ 2.3 GHz
2425
2425

Cinebench R23 (Single-Core)

Intel Core i9-12900K
16C 24T @ 3.2 GHz
1997
1997
Intel Core i9-12900HX
16C 24T @ 2.3 GHz
1902
1902

Geekbench 5, 64bit (Single-Core)

Intel Core i9-12900K
16C 24T @ 3.2 GHz
1990
1990
Intel Core i9-12900HX
16C 24T @ 2.3 GHz
1861
1861

Cinebench R20 (Single-Core)

Intel Core i9-12900K
16C 24T @ 3.2 GHz
779
779
Intel Core i9-12900HX
16C 24T @ 2.3 GHz
736
736

Cinebench R15 (Single-Core)

Intel Core i9-12900K
16C 24T @ 3.2 GHz
294
294
Intel Core i9-12900HX
16C 24T @ 2.3 GHz
274
274